:root{
  --primary:rgb(70,139,223);
  --primary-dark:#1f5fae;
  --primary-soft:#eef6ff;
  --ink:#14243b;
  --muted:#5d6f86;
  --line:#dbe9f8;
  --card:#ffffff;
  --bg:#f6fbff;
  --shadow:0 12px 30px rgba(48,99,160,.10);
  --radius:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;background:linear-gradient(180deg,#eef7ff 0%,#fff 38%,#f7fbff 100%);color:var(--ink);font-size:16px;line-height:1.72}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.86);backdrop-filter:blur(16px);border-bottom:1px solid rgba(219,233,248,.9)}
.header-inner{padding:12px 16px 10px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;color:#18345b;letter-spacing:.02em;white-space:nowrap}
.logo img{width:30px;height:30px;border-radius:9px;object-fit:cover}
.mobile-nav{display:flex;gap:9px;font-size:13px;color:#48607b;align-items:center;overflow-x:auto;white-space:nowrap;padding-bottom:2px}
.mobile-nav a{padding:6px 8px;border-radius:999px;background:rgba(238,246,255,.8)}
.page-wrap{padding:0 16px 32px;max-width:560px;margin:0 auto}
.banner{padding:26px 0 14px;display:grid;gap:20px}
.hero-card{background:linear-gradient(145deg,#fff 0%,#eff7ff 100%);border:1px solid rgba(219,233,248,.95);border-radius:28px;padding:22px;box-shadow:var(--shadow);overflow:hidden;position:relative}
.hero-card:after{content:"";position:absolute;right:-55px;top:-55px;width:150px;height:150px;border-radius:50%;background:rgba(70,139,223,.13)}
.kicker{display:inline-flex;gap:6px;align-items:center;background:rgba(70,139,223,.10);color:var(--primary-dark);border:1px solid rgba(70,139,223,.18);border-radius:999px;padding:5px 10px;font-size:12px;font-weight:700;margin-bottom:12px}
h1{font-size:30px;line-height:1.2;margin:0 0 12px;letter-spacing:-.03em;color:#10233d}
h2{font-size:22px;line-height:1.3;margin:0 0 12px;color:#153257;letter-spacing:-.02em}
h3{font-size:17px;margin:0 0 6px;color:#193b64}
p{margin:0 0 12px;color:var(--muted)}
.lead{font-size:16px;color:#425874}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:999px;background:var(--primary);color:#fff!important;font-weight:800;box-shadow:0 12px 22px rgba(70,139,223,.26);border:0;margin-top:8px;letter-spacing:.02em}
.download-btn:after{content:"›";font-size:22px;margin-left:8px;line-height:1}
.desktop-client .download-btn{display:none!important}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 4px}
.badge{font-size:12px;color:#245b9f;background:#edf6ff;border:1px solid #d8eafa;border-radius:999px;padding:5px 9px;font-weight:700}
.product-visual{background:radial-gradient(circle at top right,rgba(70,139,223,.22),transparent 45%),linear-gradient(160deg,#e9f5ff,#fff);border-radius:26px;padding:18px;border:1px solid var(--line);box-shadow:var(--shadow)}
.product-visual img{margin:auto;max-height:360px;object-fit:contain;border-radius:22px}
.section{margin:18px 0;padding:20px;background:rgba(255,255,255,.74);border:1px solid rgba(219,233,248,.94);border-radius:var(--radius);box-shadow:var(--shadow)}
.section.soft{background:linear-gradient(145deg,#f2f8ff,#fff)}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:0 8px 22px rgba(31,95,174,.07);margin-top:12px}
.feature-grid{display:grid;grid-template-columns:1fr;gap:12px;margin-top:10px}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:15px;box-shadow:0 8px 18px rgba(31,95,174,.06)}
.feature-card .icon{width:34px;height:34px;border-radius:12px;background:rgba(70,139,223,.12);display:flex;align-items:center;justify-content:center;color:var(--primary-dark);font-weight:900;margin-bottom:8px}
.data-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.data-block{background:linear-gradient(180deg,#fff,#f0f7ff);border:1px solid var(--line);border-radius:18px;padding:14px;text-align:center}
.data-block strong{display:block;color:var(--primary-dark);font-size:20px}
.data-block span{font-size:12px;color:var(--muted)}
.faq-item{padding:14px 0;border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0;padding-bottom:0}
.faq-item h3{font-size:16px;color:#18345b}
.tip{background:#f2f8ff;border-left:4px solid var(--primary);border-radius:14px;padding:14px;margin-top:12px;color:#465d78}
.steps{counter-reset:step;display:grid;gap:10px;margin:12px 0}
.step{counter-increment:step;background:#fff;border:1px solid var(--line);border-radius:16px;padding:13px 13px 13px 48px;position:relative;box-shadow:0 8px 18px rgba(31,95,174,.05)}
.step:before{content:counter(step);position:absolute;left:13px;top:13px;width:24px;height:24px;border-radius:50%;background:var(--primary);color:#fff;font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center}
.cta-panel{background:linear-gradient(135deg,var(--primary),#82b7f1);color:#fff;border-radius:24px;padding:20px;margin:18px 0;box-shadow:0 16px 32px rgba(70,139,223,.22)}
.cta-panel p,.cta-panel h2{color:#fff}.cta-panel .download-btn{background:#fff;color:var(--primary-dark)!important;box-shadow:none}
.site-footer{max-width:560px;margin:0 auto;padding:24px 16px 34px;color:#6b7d92}
.footer-brand{display:flex;gap:10px;align-items:center;margin-bottom:12px}.footer-brand img{width:34px;height:34px;border-radius:10px}.footer-brand strong{color:#18345b}.footer-brand p{margin:0;font-size:13px}
.footer-links{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0}.footer-links a{font-size:13px;background:#eef6ff;border-radius:999px;padding:6px 10px;color:#385b85}
.footer-note{font-size:12px;color:#7a8b9f}
.desktop-notice{position:fixed;inset:0;background:rgba(246,251,255,.96);z-index:9999;display:flex;align-items:center;justify-content:center;padding:24px}.notice-card{max-width:420px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:26px;text-align:center;box-shadow:var(--shadow)}.notice-card strong{font-size:22px;color:#153257}.notice-card p{margin-top:10px}
.desktop-client .site-header,.desktop-client .page-wrap,.desktop-client .site-footer{opacity:.08;pointer-events:none;user-select:none}
@media (min-width:700px){.page-wrap,.site-footer{max-width:640px}.banner{grid-template-columns:1fr 1fr;align-items:center}.feature-grid{grid-template-columns:1fr 1fr}.mobile-nav{gap:12px}h1{font-size:36px}}